18 CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. CYLLOPODID^E. 



The fifth pair are considerably longer, having the femur dilated, the tibia and 

 carpus subequal; the tibia has the anterior margin fringed with a few distant hairs; 

 in the carpus the anterior margin is furnished with a row of close cilia of equal length, 

 and a few distant hairs; infero-anterior margin oblique. The metacarpus is slightly 

 arcuate, the margins parallel, the anterior serrated and furnished with a few distant hairs. 

 The dactyl us is slender, smooth, sharp. 



The sixth pair resemble the fifth except that they are slightly longer. 



The seventh pair reach not beyond the distal extremity of the femur of the sixth 

 pair. The femur is broadly dilated, posteriorly emarginate. The dactylus is as long 

 as the metacarpus, terminating obtusely, being as broad at the end as at the base. 



The pleon with the hinder corners of the segments rounded. 



The urns is a little shorter than the two last segments of the pleon. 



The first pair of uropoda have the peduncle reaching as far again as that of the 

 next pair, the rami reaching be} T ond the extremity of the peduncle of the third pair and 

 serrated like those of the next pair. The second pair have the peduncle not reaching 

 beyond the last segment of the urus, whilst the rami reach to the extremity of the 

 peduncle of the third pair, the inner branch being coarsely serrated upon the outer and 

 on the distal extremity of the inner margin, and each denticle being minutely serrated 

 along the outer line. The third pair have the peduncle nearly five times as long as the 

 telson, the rami are about half as long as the peduncle, the interior one coarsely and the 

 exterior minutely serrated upon the inner side, except toward the extremity where it is 

 more coarsely serrated on each margin. 



Telson small, lanceolate. 



From the just issued »Report on the Amphipoda collected by H. M. S. Challenger, 

 during the years 1873 — 1876», by Rev. Thomas R. R. Stebbing, I ma} T introduce here a 

 short description of a new species: 



7. CYLLOPUS HOOKERI, TH. STEBBING, 1888. 



Diagll. Caput leviter rostratum. Antenna' primi paris latitudine requiter decrescentes, apice cylindrato. 

 Carpus primi paris pedum percei latus, non productus, metacarpo paullo longior; meta- 

 carpus serratus. Carpus pedum secundi paris productus, serratus, metacarpo longior. 

 Metacarpi pedum quinti ac sexti parium carpis multo longiores. Pedes septimi paris 

 femore pedum sexti paris paullo longiores; femur post non excavatum, articulis sequenti- 

 bus duplo longius. Latera segmentorum plei rotundata, post serrata. Segmentum secun- 

 dum ac tertium uri coalita. Pedunculus pedum uri primi paris ramos longitudine sequans; 

 pedunculus secundi paris ramis brevior; pedunculus ultimi paris ramis multo, sed non 

 duplo longior. Telson latius quam longius, triangulare-rotundatum, quartam partem longi- 

 tudinis pedunculi pedum uri ultimi paris gequans. 



The head with a small rostral angle. The first pair of antennce gradually tapering, the 

 terminal part cylindrical. The carpus of the first pair of perceopoda is broad, not produced, 



